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rootfs-initramfs is not using the generic fs infrastructure, because there is virtually nothing to do to build the initramfs image: there is no actual image to be built to begin with. The only purpose of rootfs-initramfs is to ensure the rootfs.cpio image is built and then that the Linux kernel is rebuilt with that rootfs.cpio as initramfs source. Using variables of the fs infra like if it were used is misleading. It looked nice as long as there was the possibility that rootfs-initramfs would one day use the fs infra. But there's no way that will happen any time soon. Furthermore, the linux' rule linux-rebuild-with-initramfs now already depends on rootfs-cpio by itself, so we need not duplicate this dependency in rootfs-initramfs. Still, we want to advertise that the dependency is on rootfs-cpio, so we get nice dependency graphs (and not expose the internal linux-rebuild-with-initramfs rule to the users). So, remove the variables and directly define the rules. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Romain Naour <romain.naour@openwide.fr> Reviewed-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches